Screw cap construction
First Claim
1. A multi-part screw cap for a container, comprising in combination:
- (a) a thin-walled cup-like shell closed at one end, said shell presenting the exterior surface of the cap and having an annular side wall,(b) an insert member having an annular side wall adapted to engage and fit generally within the inner surface of the annular wall of the shell, said insert member having internal threads adapted to mate with the external threads on the neck of a container,(c) means fixedly securing the insert member within the annular wall of the shell,(d) a one-piece weight member constituted as a single wire coil disposed completely within the shell at a location between the closed end thereof and the insert member so as to provide a weighted feel to the screw cap, and(e) means for securing said weight member to said shell against inadvertent loosening during subsequent use of the cap.
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Accused Products
Abstract
A multi-part screw cap construction for a container, comprising a thin-walled cup-like shell, an insert member having an annular side wall receivable in the shell, and a one-piece weight member constituted essentially as a single wire coil disposed completely within the shell at a location between its closed end and the end of the insert member, so as to provide a "weighted feel" to the cap. The coil is secured against looseness or vibration by suitable adhesive or cement, and the insert member can be pressed into the shell and adhered thereto by the adhesive while the latter is still tacky. The insert member is cup-like, and internally threaded for cooperation with the external threads on the neck of the container. The advantage is that an improved ornamental appearance can be imparted to the exterior surface of the shell, such as by metallizing or lacquering processes, while at the same time there can be employed relatively inexpensive components, such as economically molded plastic parts, drawn metal shells, and simple wire stock, for economy.
8 Citations
26 Claims
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1. A multi-part screw cap for a container, comprising in combination:
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(a) a thin-walled cup-like shell closed at one end, said shell presenting the exterior surface of the cap and having an annular side wall, (b) an insert member having an annular side wall adapted to engage and fit generally within the inner surface of the annular wall of the shell, said insert member having internal threads adapted to mate with the external threads on the neck of a container, (c) means fixedly securing the insert member within the annular wall of the shell, (d) a one-piece weight member constituted as a single wire coil disposed completely within the shell at a location between the closed end thereof and the insert member so as to provide a weighted feel to the screw cap, and (e) means for securing said weight member to said shell against inadvertent loosening during subsequent use of the cap. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 24, 25, 26)
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17. A method of producing a multi-part screw cap for a container of the type having an outer cup-like shell closed at one end and presenting the exterior surface of the cap and having an annular side wall, having an insert member with an annular side wall adapted to engage and fit generally within the inner surface of the annular wall of the shell and wherein the insert member has internal threads adapted to mate with the external threads on the neck of the container, and having a one-piece weight member constituted as a single wire coil, comprising the steps of:
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(a) applying a quantity of adhesive substance to the inner surface of the shell, (b) inserting the coil into the shell such that at least some of the surfaces thereof come into contact with the adhesive prior to solidifying of the latter, and (c) pressing the insert member into the shell until the transverse wall of the insert member comes into contact with the adhesive, such it can be held in position in the shell following sufficient curing of the adhesive. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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Specification